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公开(公告)号:US707080A
公开(公告)日:1902-08-19
申请号:US1900003819
申请日:1900-02-03
Applicant: DIAMOND MATCH CO
Inventor: BOWMAN CHARLES M
CPC classification number: C06F3/00
公开(公告)号:US707080A
公开(公告)日:1902-08-19
申请号:US1900003819
申请日:1900-02-03
Applicant: DIAMOND MATCH CO
Inventor: BOWMAN CHARLES M
CPC classification number: C06F3/00